-56.4, -4.7833333: 10 Treatments

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Brycon falcatus     Lima, Flávio C. T., 2017, A revision of the cis-andean species of the genus Brycon Müller & Troschel (Characiformes: Characidae), Zootaxa 4222 (1), pp. 1-189 : 142-158 142-158
Adenomera aurantiaca   sp. nov.  Carvalho, Thiago R. D., Moraes, Leandro J. C. L., Lima, Albertina P., Fouquet, Antoine, Peloso, Pedro L. V., Pavan, Dante, Drummond, Leandro O., Rodrigues, Miguel T., Giaretta, Ariovaldo A., Gordo, Marcelo, Neckel-Oliveira, Selvino & Haddad, Célio F. B., 2021, Systematics and historical biogeography of Neotropical foam-nesting frogs of the Adenomera heyeri clade (Leptodactylidae), with the description of six new Amazonian species, Zoological Journal of the Linnean Society 191, pp. 395-433 : 416-420 416-420
Tapajos     Carvalho, Thiago R. D., Moraes, Leandro J. C. L., Lima, Albertina P., Fouquet, Antoine, Peloso, Pedro L. V., Pavan, Dante, Drummond, Leandro O., Rodrigues, Miguel T., Giaretta, Ariovaldo A., Gordo, Marcelo, Neckel-Oliveira, Selvino & Haddad, Célio F. B., 2021, Systematics and historical biogeography of Neotropical foam-nesting frogs of the Adenomera heyeri clade (Leptodactylidae), with the description of six new Amazonian species, Zoological Journal of the Linnean Society 191, pp. 395-433 : 422-424 422-424
Myrmecium quasimodo   sp. nov.  Silva-Junior, Claudio J. & Bonaldo, Alexandre B., 2019, Four new species of Myrmecium Latreille, 1824 and complementary description of M. machetero Candiani & Bonaldo, 2017 (Araneae: Corinnidae: Castianeirinae), Zootaxa 4706 (2), pp. 391-400 : 397-400 397-400
Curculionichthys itaim   sp. nov.  Roxo, Fábio F., Dias, Angelica C., Silva, Gabriel S. C. & Oliveira, Claudio, 2017, Two new species of Curculionichthys (Siluriformes: Loricariidae) from the rio Amazonas basin, Brazil, Zootaxa 4341 (2) : -1 -1
Tatia luisae   sp. nov.  Ribeiro, Frank Raynner V., Silva-Oliveira, Cárlison, Silva, Alberto Conceição F. da & Canto, André L. Colares, 2022, New species of driftwood catfish of Tatia (Siluriformes: Auchenipteridae) from rio Tapajós, Brazil, Neotropical Ichthyology (e 210164) 20 (2) : -1 -1
Chiasmocleis avilapiresae   sp. nov.  Peloso, Pedro Luiz Vieira & Sturaro, Marcelo José, 2008, A new species of narrow-mouthed frog of the genus Chiasmocleis Méhelÿ 1904 (Anura, Microhylidae) from the Amazonian rainforest of Brazil, Zootaxa 1947, pp. 39-52 : 40-47 40-47
Allobates nunciatus   sp. nov.  Moraes, Leandro João Carneiro De Lima, Pavan, Dante & Lima, Albertina Pimentel, 2019, A new nurse frog of Allobates masniger - nidicola complex (Anura, Aromobatidae) from the east bank of Tapajós River, eastern Amazonia, Zootaxa 4648 (3), pp. 401-434 : 404-421 404-421
Rhinopetitia nigrofasciata   sp. nov.  Menezes, Naércio A. & Netto-Ferreira, Andre L., 2019, A systematic review of Rhinopetitia Géry (Teleostei, Characiformes, Characidae) with descriptions of four new species and redescription of R. myersi Géry, Zootaxa 4700 (1), pp. 59-86 : 76-80 76-80
Thayeria tapajonica   sp. nov.  Moreira, Cristiano R. & Lima, Flávio C. T., 2017, Thayeria tapajonica (Characiformes: Characidae), a new species from rio Tapajós basin, Brazil, Zootaxa 4344 (1), pp. 137-146 : 138-143 138-143